What are the LCh and JCh values for the sRGB blue primary?

[KelSolaar (Thomas Mansencal)]

I was answering Elle’s mail about the CAT and just saw @anon11264400 replied, thanks!

@Elle

There is no gamut mapping in the xicclu output when converting from a matrix sRGB ICC profile to Lab/LCh/etc. It just does the requested conversion using either relative or absolute colorimetric intent.

This is confusing, rendering intents are just about gamut mapping, could you or Graeme explain what is happening when you cherry-pick one or another?

I unfortunately don’t have much time to allocate to this thread at the moment but will keep reading.